

<template>
  <div id="userLoginPage">
    <h2 class="title">智能协同云图库 - 用户登录</h2>
    <a-form :model="formState" name="basic" autocomplete="off" @finish="handleSubmit">
      <a-form-item name="userAccount" :rules="[{ required: true, message: '请输入账号' }]">
        <a-input v-model:value="formState.userAccount" placeholder="请输入账号" />
      </a-form-item>
      <a-form-item
        name="userPassword"
        :rules="[
          { required: true, message: '请输入密码' },
          { min: 6, message: '密码不能小于 6 位' },
        ]"
      >
        <a-input-password v-model:value="formState.userPassword" placeholder="请输入密码" />
      </a-form-item>
      <a-form-item name="captchaInput" :rules="[{ required: true, message: '请输入验证码' }]">
        <a-row :gutter="[16, 0]">
          <a-col :span="14">
            <a-input v-model:value="formState.captchaInput" placeholder="请输入验证码"/>
          </a-col>
          <a-col :span="10">
            <div style="background-color: #f0f0f0; padding: 8px; text-align: center; cursor:pointer;" @click="refreshCaptcha">
              {{ captchaText }}
            </div>
          </a-col>
        </a-row>
      </a-form-item>
      <div class="tips">
        没有账号？
        <RouterLink to="/user/register">去注册</RouterLink>
      </div>
      <a-form-item>
        <a-button type="primary" html-type="submit" style="width: 100%">登录</a-button>
      </a-form-item>
    </a-form>
  </div>
</template>

<script setup lang="ts">
import { reactive, ref } from 'vue'
import { useRouter } from 'vue-router'
import { useLoginUserStore } from '@/stores/useLoginUserStore'
import { message } from 'ant-design-vue'
import { userLoginUsingPost } from '@/api/userController'

const formState = reactive({
  userAccount: '',
  userPassword: '',
  captchaInput: ''
})

const captchaText = ref<string>(generateCaptcha())

function generateCaptcha() {
  // 简单的数学运算验证码
  const num1 = Math.floor(Math.random() * 10) + 1
  const num2 = Math.floor(Math.random() * 10) + 1
  return `${num1} + ${num2} = ?`
}

const router = useRouter()
const loginUserStore = useLoginUserStore()

function refreshCaptcha() {
  captchaText.value = generateCaptcha()
  formState.captchaInput = '' // 清空用户输入
}

/**
 * 提交表单
 * @param values
 */
const handleSubmit = async (values: any) => {
  const expectedAnswer = eval(captchaText.value.split('=')[0]) // 注意：eval存在安全风险，此处仅用于简单示例
  if (parseInt(values.captchaInput) !== expectedAnswer) {
    message.error('验证码错误')
    refreshCaptcha()
    return
  }

  // 假设这里进行登录操作...
  const res = await userLoginUsingPost(values)
  // 登录成功，把登录态保存到全局状态中
  if (res.data.code === 0 && res.data.data) {
    await loginUserStore.fetchLoginUser()
    message.success('登录成功')
    router.push({
      path: '/',
      replace: true,
    })
  } else {
    message.error('登录失败，' + res.data.message)
  }

}
</script>



<style scoped>

#userLoginPage {
  max-width: 360px;
  margin: 0 auto;
}

.title {
  text-align: center;
  margin-bottom: 16px;
}

.desc {
  text-align: center;
  color: #bbb;
  margin-bottom: 16px;
}

.tips {
  margin-bottom: 16px;
  color: #bbb;
  font-size: 13px;
  text-align: right;
}

</style>

